Dongfeng GX truck parts water pipe Left bracket assembly 5301581-C6100

Built as the critical load-bearing component for the left cooling water pipe, this bracket features a robust design to withstand dynamic and thermal stresses. The main body is fabricated from Q550 high-strength steel via precision stamping, with a 6mm-thick base and 5mm-thick U-shaped reinforcing ribs—achieving a static load capacity of 200N, easily securing the water pipe (filled with coolant, weight ~3kg) and resisting vibration-induced displacement. The stamping process optimizes material grain flow, enhancing fatigue resistance to withstand 300,000km of engine vibration without structural deformation. The pipe clamping area is lined with a 3mm-thick rubber pad that absorbs thermal expansion (up to 5mm) of the water pipe, preventing stress cracks at connection points

Engineered to resist corrosion and high temperatures in the harsh engine bay environment, the 5301581-C6100 bracket adopts an advanced multi-layer protective system. The surface undergoes shot blasting (Sa 2.5 grade) to remove impurities, followed by a 40μm cathodic electrophoretic primer for uniform rust prevention. The top layer is a 50μm high-temperature resistant silicone-based powder coating that withstands continuous operating temperatures of 200℃—adapting to heat radiated from the engine and exhaust manifold. This coating system passes 2000-hour neutral salt spray testing (ASTM B117) with no rust, resisting coolant spills and humid engine bay conditions. The rubber pad is made of EPDM, which resists coolant erosion and maintains elasticity in extreme temperatures

Optimized to eliminate noise and prevent water pipe damage from vibration, the bracket integrates dedicated dampening features. The EPDM rubber pad between the bracket and water pipe absorbs 60% of engine vibration (10-500Hz), preventing metal-to-metal contact that causes rattling and pipe abrasion. The mounting bolts use flange nuts with nylon inserts (self-locking torque ≥15N·m), which prevent loosening even after long-term vibration—avoiding the need for periodic re-tightening. The U-shaped clamping design with adjustable bolt tension allows precise fitting of the water pipe, accommodating minor dimensional variations while maintaining a secure grip. These features reduce the risk of water pipe leaks at connection points by 70%

This water pipe left bracket is designed for efficient installation and long-term cost savings for Dongfeng GX operators. The pre-assembled structure (bracket + rubber pad + self-locking nuts + mounting bolts) allows a single technician to complete replacement in 30 minutes using only a socket wrench—no welding or drilling required. The OE-compatible design ensures perfect alignment with the water pipe and engine bay, avoiding misfit issues of aftermarket brackets that cause pipe kinking or leaks (repair costs up to $600). The high-strength steel and corrosion-resistant coating extend the bracket’s service life to ≥800,000km—twice that of non-OE alternatives—reducing replacement frequency. Backed by a 2-year/300,000km Dongfeng warranty, it provides reliable water pipe support and predictable maintenance expenses for fleet operations